package cn.fzkj.project.common.controller;

import cn.fzkj.common.constant.Constants;
import cn.fzkj.common.utils.StringUtils;
import cn.fzkj.common.utils.file.FileUploadUtils;
import cn.fzkj.common.utils.file.FileUtils;
import cn.fzkj.framework.config.RuoYiConfig;
import cn.fzkj.framework.config.ServerConfig;
import cn.fzkj.framework.messagequece.MessageType;
import cn.fzkj.framework.messagequece.service.MessageService;
import cn.fzkj.framework.redis.RedisCache;
import cn.fzkj.framework.web.domain.ResultVO;
import cn.fzkj.project.common.service.ICommonService;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.web.bind.annotation.*;
import org.springframework.web.multipart.MultipartFile;

import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.List;
import java.util.Map;

@RestController
@RequestMapping("common")
public class CommonController {
    private static final Logger log = LoggerFactory.getLogger(CommonController.class);

    @Autowired
    private ICommonService commonService;
    @Autowired
    private RedisCache redisUtil;
    @Autowired
    private MessageService messageService;
    @Autowired
    private ServerConfig serverConfig;

    /** 拿到背景图片 */
    @RequestMapping(value = "getImg", method = RequestMethod.GET)
    public ResultVO getImg(){
        String data = (String)redisUtil.get(Constants.IMG_PREFIX);
        if (StringUtils.isEmpty(data)){
            data = commonService.getImgByPy();
        }
        messageService.sendMsg2Redis(MessageType.REDIS_GET_IMG, "");
        return ResultVO.success(data);
    }

    /** 拿到推荐句子 */
    @RequestMapping(value = "getWords", method = RequestMethod.GET)
    public ResultVO getWords(){
        return ResultVO.success("拿到推荐句子接口调用成功");
    }

    /**
     * 通用下载请求
     * @param fileName 文件名称
     * @param delete 是否删除
     */
    @GetMapping("/download")
    public void fileDownload(String fileName, Boolean delete, HttpServletResponse response, HttpServletRequest request)
    {
        try
        {
            if (!FileUtils.isValidFilename(fileName))
            {
                throw new Exception(StringUtils.format("文件名称({})非法，不允许下载。 ", fileName));
            }
            String realFileName = System.currentTimeMillis() + fileName.substring(fileName.indexOf("_") + 1);
            String filePath = RuoYiConfig.getDownloadPath() + fileName;

            response.setCharacterEncoding("utf-8");
            response.setContentType("multipart/form-data");
            response.setHeader("Content-Disposition",
                    "attachment;fileName=" + FileUtils.setFileDownloadHeader(request, realFileName));
            FileUtils.writeBytes(filePath, response.getOutputStream());
            if (delete) {
                FileUtils.deleteFile(filePath);
            }
        }
        catch (Exception e)
        {
            log.error("下载文件失败", e);
        }
    }

    /**
     * 通用上传请求
     */
    @PostMapping("/upload")
    public ResultVO uploadFile(MultipartFile file) {
        try
        {
            // 上传文件路径
            String filePath = RuoYiConfig.getUploadPath();
            // 上传并返回新文件名称
            String fileName = FileUploadUtils.upload(filePath, file);
            String url = serverConfig.getUrl() + fileName;
            ResultVO ajax = ResultVO.success();
            ajax.put("fileName", fileName);
            ajax.put("url", url);
            return ajax;
        }
        catch (Exception e)
        {
            return ResultVO.error(e.getMessage());
        }
    }

    /**
     * 本地资源通用下载
     */
    @GetMapping("/download/resource")
    public void resourceDownload(String name, HttpServletRequest request, HttpServletResponse response) throws Exception {
        // 本地资源路径
        String localPath = RuoYiConfig.getProfile();
        // 数据库资源地址
        String downloadPath = localPath + StringUtils.substringAfter(name, Constants.RESOURCE_PREFIX);
        // 下载名称
        String downloadName = StringUtils.substringAfterLast(downloadPath, "/");
        response.setCharacterEncoding("utf-8");
        response.setContentType("multipart/form-data");
        response.setHeader("Content-Disposition",
                "attachment;fileName=" + FileUtils.setFileDownloadHeader(request, downloadName));
        FileUtils.writeBytes(downloadPath, response.getOutputStream());
    }

}
